Health pig raising should focus on sows. The health care work is to use Ye Ming 1 to do a good job of sows, eliminate the pressure of sow production and reproduction, and greatly improve sow production performance.
Sow production and reproductive stress
The stress of sow production and reproduction leads to postpartum burnout, estrus, incomplete involution of uterus, small birth weight of piglets, many weak ones, uneven and insufficient lactation of sows, which not only seriously affects sow production performance for a long time, but also has a certain impact on the next generation and growth and fattening period. According to the author's preliminary estimation, the annual loss caused by sow production and reproductive stress in China has reached more than 654.38+0.5 billion yuan. Solve the "sow reproductive stress syndrome", make the newborn weight of piglets 1.5-2.5 kg, weaning weight 9- 10 kg, and shorten the whole feeding cycle by 10 day.
Health care method
According to the pathogenesis of reproductive stress syndrome, it is obvious that treatment is not the main thing, so we must change our concept, focus on health care and prevention, and change from passive treatment to active health care. In order to avoid mobilizing a large amount of body reserves, the author developed an anti-reproductive stress agent "Sacrifice one's life 1" (produced by Changsha Luye Biotechnology Co., Ltd.), which was used for high-intensity production and reproduction tasks of sows, and at the same time, Chinese medicine was used to adjust the glucocorticoid level and improve the immunity of the body. The health care plan for preventing sow reproductive stress was formulated, that is, four keys were grasped from both quality and quantity.
First, sows start from 6 months old to 7 days after mating. Grasping quality is to provide nutrition for promoting sow sexual maturity. The method is to add 1% "Ye Sheng1"to the diet; Catch is to promote physical maturity. Sows should weigh 80-90kg at 6 months, 65,438+020-65,438+040kg at 8-65,438+00 months. If the weight is not up to standard, the feeding amount should be increased appropriately.
Second, 70~ 1 14 days in the third trimester of sow pregnancy, during which 70~80% of fetal birth weight and the development and formation of fetal immune organs. Grasping substance is mainly a nutrient for the development of fetus and fetal immune organs. The method is to add "yesheng 1~ 1.5%"; Catch means to appropriately increase the feeding amount in the third trimester, with an increase range of 30%~50%. (If the sow suffers from drug-induced constipation, which affects the feed intake, the dosage of the original premix should be reduced by 40-50% first, and then "Shengying1"1.5% should be added to eliminate constipation).
Third, lactation, lactation is the key, and quality control is aimed at the supply of nutrients needed for sow lactation and sow uterus repair. The method is to add "yesheng1"according to the ratio of 2%; Grasping means that the litter size of sows is above 10, and it is best to feed freely (if sows have drug constipation, the dosage of the original premix should be reduced by 50% first, and then 2% "Yesheng 1" should be added) to eliminate constipation.
4. After sow weaning to 7 days after mating, the quality is to add 1% phyllosome 1 to promote sow to ovulate more and ovulate more eggs with strong vitality, promote uterine milk secretion, and appropriately reduce the feeding amount according to sow fat situation.
Health care effect
Practice of prevention and treatment of reproductive stress in sows: After years of popularization and application, the above comprehensive health care scheme has achieved remarkable results. The above health care scheme was applied to Mingjiang [5] and others. Compared with the control group, the white dysentery of piglets in the experimental group decreased by 80.2% and the survival rate of piglets increased by 9%. The weaning weight of the control group was 6.5kg, and that of the experimental group was 1 1. 1kg, which was 70% higher than that of the control group. The average estrus time of sows in the experimental group was 3.8 days, while that in the control group was 6.4 days, with an average shortening of 2.6 days. Wu Lifa [6] and others applied the above-mentioned health care scheme test in Hunan Xinwufeng Co., Ltd., and selected 30 sows and randomly divided them into two groups, namely, the experimental group sows 15, the control group sows 1 head, and the experimental group during lactation added 2% of "career1"; The results showed that compared with the control group, the performance of piglets at 6 days old was significantly different. After weaning at the age of 28 days, the average weight of piglets in the experimental group was 9. 12kg, and the survival rate was 98.4%, while that in the control group was 7.62kg, and the survival rate was 92.3%, which increased by 19.6% and 6. 1% respectively. The estrus rate of the experimental group was 65438 000%, and that of the control group was 86.6%. The estrus time in the experimental group was shortened by an average of 2 days, and it was relatively concentrated. Jiang [7] and others have also achieved similar results in the experiments of 7000 pig farms in Huanlian Farm, Hunan Province. Wen Lixin et al. [8] summarized the 12 pig farm, a number of clinical experimental reports and their popularization and application in dozens of counties such as Hunan, Jiangxi and Henan. The results showed that the average birth weight of piglets increased by more than 30%, reaching more than 1.5 kg. The fetus is even, the disease resistance is obviously enhanced, and the yellow and white dysentery is reduced by more than 50%; Using early feeding technology to regulate pig farms, the weaning weight reached more than 10 kg in 25-28 days, and the highest record reached 14 kg. The feeding cycle of fattening pigs was shortened by 10 days, and the average sow litter was 1-3 litters. After weaning, the estrus of reserve sows and multiparous sows decreased by 90%, and the incidence of endometritis decreased significantly.